835152640 has 144 divisors (see below), whose sum is σ = 2315835648. Its totient is φ = 282636288.

The previous prime is 835152613. The next prime is 835152649. The reversal of 835152640 is 46251538.

It is a junction number, because it is equal to n+sod(n) for n = 835152596 and 835152605.

It is not an unprimeable number, because it can be changed into a prime (835152649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743119 + ... + 744241.

It is an arithmetic number, because the mean of its divisors is an integer number (16082192).

Almost surely, 2^835152640 is an apocalyptic number.

835152640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 835152640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157917824).

835152640 is an abundant number, since it is smaller than the sum of its proper divisors (1480683008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

835152640 is a wasteful number, since it uses less digits than its factorization.

835152640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 835152640 is about 28899.0075954175. The cubic root of 835152640 is about 941.7203443788.

The spelling of 835152640 in words is "eight hundred thirty-five million, one hundred fifty-two thousand, six hundred forty".